/Engine/Source/Runtime/CoreUObject/Public/UObject/PackageFileSummary.h
I/O functions we use a function instead of operator<< so we can pass in the package file summary for version tests, since archive version hasn't been set yet
void Serialize ( [FArchive](API\Runtime\Core\Serialization\FArchive) & Ar, const struct [FPackageFileSummary](API\Runtime\CoreUObject\UObject\FPackageFileSummary) & Summary )